soil from the site and then take several other samples from different points on the site. This ensures variety of soil to ensure that all the site is safe‚ not just a small area where you would have taken your first sample from. I will return to the lab with the samples of soil I have extracted from the site. Here I will make a solution from the samples in order to carry out the identification tests. In order to turn my soil samples
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Our inspiration for this experiment came from a lecture in class about the Los Angeles council agreeing that there should be a law limiting homeless people’s belongings to what can fit in a trash bin. This would force the homeless people to throw away large portions of their belongings to benefit the city from not having “trash” on the streets. According to the L.A. times‚ the legislation California believes that this law will “limit storage on sidewalks‚ parkways‚ and alleys citywide to what homeless
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Acid Base Titration Purpose: The purpose is to calculate the molarity of a NaOH solution by titrating the base with 5mL of standard HCl solution in each trial. By adding the base with unknown molarity to the acid with 0.10M the molarity of NaOH can be calculated. The base‚ NaOH‚ helps bring the pH of the acid‚ HCl‚ closer to seven‚ which neutralizes it. When using the buret the amount of NaOH used is able to be determined. Then by writing a balanced chemical equation and using the titration
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Animesh Karki Limiting the Funding of U.S Space Program The spirit and sense of adventure of exploring the ‘heavens’ captivates the general public very easily. Ever since the competition between the Soviet Union and U.S to occupy space‚ the United States has been on a consistent drive to discover more and more of outer space. Although there are minor independent companies that contribute to space exploration‚ the U.S government
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Limiting the Standards of Standardized Testing The Virginia Standards of Learning exams were introduced to public schools in1997. The testing begins in the third grade and continues through high school. Before 2014‚ students were required to take twenty-two state mandated Standards of Learning tests; that has since been reduced to seventeen. High school students must pass six Standards of Learning tests to earn a diploma. I believe students are being over tested and these standardized tests are
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mol of CuSO4 and the mol/L concentration. Then this was used to find out how many mL of 0.5 NaOH solution is needed to react completely with all the copper (II) sulphate in solution. Then titrate ¼ of the estimated amount number of mL of NaOH needed to react with the sulphate solution. Then add 5 mL at a time NaOH until Cu(OH)2 precipitate does not form. Record the correct number off mL which forms to NaOH solution. Fold the filter paper and stick inside the funnel‚ and pour the solution of copper
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Stoichiometry February 28th‚ 2013 Abstract: The reactions of the Sodium Hydroxide and two acids‚ Hydrochloric Acid and Sulfuric Acid were performed. The heat given off by these two reactions was used to determine the stoichiometric ratio and the limiting reactants in each experiment. Introduction: Coefficients in a balanced equations show how many moles of each reactant is needed to react with each other and how many moles of each product that will be formed. Stoichiometry allows us to calculate
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Abstract: The Enzyme Lab results where when the liver was frozen‚ its reaction was fast‚ and when it was hot‚ it was slow‚ and the liver that was at room temperature reacted slowly to medium. Introduction: The Enzyme Lab is to conduct investigations to determine the most favorable conditions for the most efficient enzyme activity. Variables to be used testing include temperature‚ pH values and surface area. Enzymes are proteins that speed up the rate of chemical reactions‚ which would otherwise
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r Lab Report 5 Introduction to the Classes of Chemical Reactions Course: Chem. 1151L‚ Tuesday & Thursday June 23‚ 2011 Mr. Nasir Uddin Pre Lab Questions: 1. CaBr2 (aq) + K3PO4 (aq) → CA(PO4)2(S) + KBr (aq) = Ca3(PO4)2 + 6 KBr Double Replacement 2. Li(s) + O2(g) = Li2O(s) =2 Li2O Decomposition 3. CH4 + O2 = CO2 + H2O = CO2 + 2 H2O Combination 4. AgBr(s) = Ag (s) + Br2(l) = 2 Ag + Br2 Combination 5. Mg(s) + H2SO4 (aq) = MgSO4 + H2
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Pornography is one of mankind’s most revered‚ respected‚ and repulsed pastimes. Adults can use pornography to relieve stress‚ enhance their sex lives‚ or simply as a means of entertainment. One of the easiest and most popular ways of obtaining pornographic material is over the Internet. The only downside is that the Internet is accessible to children; therefore‚ pornography is accessible to children. While adults should have limitless access to Internet porn‚ minors should be kept away from this
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